lxdream 0.9.1| filename | src/drivers/video_gtk.c |
| changeset | 94:8d80d9c7cc7d |
| next | 103:9b9cfc5855e0 |
| author | nkeynes |
| date | Sun Feb 05 04:05:27 2006 +0000 (18 years ago) |
| permissions | -rw-r--r-- |
| last change | Video code reshuffle to start getting real video happening. Implement colourspace conversions Various tweaks |
| view | annotate | diff | log | raw |
1 /**
2 * $Id: video_gtk.c,v 1.1 2006-02-05 04:05:27 nkeynes Exp $
3 *
4 * The PC side of the video support (responsible for actually displaying /
5 * rendering frames)
6 *
7 * Copyright (c) 2005 Nathan Keynes.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
20 #include <gnome.h>
21 #include <gdk/gdkx.h>
22 #include <stdint.h>
23 #include "video.h"
24 #include "drivers/video_x11.h"
26 GdkImage *video_img = NULL;
27 GtkWindow *video_win = NULL;
28 GtkWidget *video_area = NULL;
29 uint32_t video_width = 640;
30 uint32_t video_height = 480;
31 uint32_t video_frame_count = 0;
33 gboolean video_gtk_set_output_format( uint32_t width, uint32_t height,
34 int colour_format );
35 gboolean video_gtk_display_frame( video_buffer_t frame );
36 gboolean video_gtk_blank( uint32_t rgb );
38 struct video_driver video_gtk_driver = { "Gtk", video_gtk_set_output_format,
39 video_gtk_display_frame,
40 video_gtk_blank };
42 gboolean video_gtk_set_output_format( uint32_t width, uint32_t height,
43 int colour_format )
44 {
45 video_width = width;
46 video_height = height;
47 if( video_win == NULL ) {
48 video_win = GTK_WINDOW(gtk_window_new( GTK_WINDOW_TOPLEVEL ));
49 gtk_window_set_title( video_win, "DreamOn! - Emulation Window" );
50 gtk_window_set_policy( video_win, FALSE, FALSE, FALSE );
51 gtk_window_set_default_size( video_win, width, height );
53 video_area = gtk_image_new();
54 gtk_widget_show( GTK_WIDGET(video_area) );
55 gtk_container_add( GTK_CONTAINER(video_win), GTK_WIDGET(video_area) );
56 gtk_widget_show( GTK_WIDGET(video_win) );
57 video_x11_set_display( gdk_x11_display_get_xdisplay( gtk_widget_get_display(video_area)),
58 gdk_x11_screen_get_xscreen( gtk_widget_get_screen(video_area)),
59 GDK_WINDOW_XWINDOW( GTK_WIDGET(video_win)->window ) );
61 }
62 gtk_window_set_default_size( video_win, width, height );
63 video_img = gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(),
64 width, height );
65 gtk_image_set_from_image( GTK_IMAGE(video_area), video_img, NULL );
66 /* Note old image is auto de-refed */
67 return TRUE;
68 }
71 /**
72 * Fill the entire frame with the specified colour (00RRGGBB)
73 */
74 gboolean video_gtk_blank( uint32_t colour )
75 {
76 char *p = video_img->mem;
77 int i;
78 for( i=0; i<video_width*video_height; i++ ) {
79 *p++ = (colour>>16) & 0xFF;
80 *p++ = (colour>>8) & 0xFF;
81 *p++ = (colour) & 0xFF;
82 *p++ = 0;
83 }
84 }
86 gboolean video_gtk_display_frame( video_buffer_t frame )
87 {
88 uint32_t bytes_per_line, x, y;
89 char *src = frame->data;
90 char *dest = video_img->mem;
92 switch( frame->colour_format ) {
93 case COLFMT_RGB15:
94 for( y=0; y < frame->vres; y++ ) {
95 uint16_t *p = (uint16_t *)src;
96 for( x=0; x < frame->vres; x++ ) {
97 uint16_t pixel = *p++;
98 *dest++ = (pixel & 0x1F) << 3;
99 *dest++ = (pixel & 0x3E0) >> 2;
100 *dest++ = (pixel & 0x7C00) >> 7;
101 *dest++ = 0;
102 }
103 src += frame->rowstride;
104 }
105 break;
106 case COLFMT_RGB16:
107 for( y=0; y < frame->vres; y++ ) {
108 uint16_t *p = (uint16_t *)src;
109 for( x=0; x < frame->vres; x++ ) {
110 uint16_t pixel = *p++;
111 *dest++ = (pixel & 0x1F) << 3;
112 *dest++ = (pixel & 0x7E0) >> 3;
113 *dest++ = (pixel & 0xF800) >> 8;
114 *dest++ = 0;
115 }
116 src += frame->rowstride;
117 }
118 break;
119 case COLFMT_RGB32:
120 bytes_per_line = frame->hres << 2;
121 if( bytes_per_line == frame->rowstride ) {
122 /* A little bit faster */
123 memcpy( dest, src, bytes_per_line * frame->vres );
124 } else {
125 for( y=0; y< frame->vres; y++ ) {
126 memcpy( dest, src, bytes_per_line );
127 src += frame->rowstride;
128 dest += bytes_per_line;
129 }
130 }
131 break;
132 }
133 gtk_widget_queue_draw( video_area );
134 return TRUE;
135 }
.